A QTL for broad-spectrum resistance to cyst nematode species (Globodera spp.) maps to a resistance gene cluster in potato

被引:76
作者
van der Voort, JR
Lindeman, W
Folkertsma, R
Hutten, R
Overmars, H
van der Vossen, E
Jacobsen, E
Bakker, J
机构
[1] Wageningen Univ Agr, Grad Sch Expt Plant Sci, Dept Nematol, NL-6700 ES Wageningen, Netherlands
[2] Wageningen Univ Agr, Grad Sch Expt Plant Sci, Dept Plant Breeding, NL-6700 AJ Wageningen, Netherlands
[3] Wageningen Univ Agr, Grad Sch Expt Plant Sci, Ctr Plant Breeding & Reprod Res, NL-6700 AA Wageningen, Netherlands
关键词
AFLP; CAPS; G-pallida; G-rostochiensis; Solanum; QTL mapping;
D O I
10.1007/s001220050785
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Broad-spectrum resistance in potato to the potato cyst nematode (PCN) species Globodera rostochiensis and G, pallida is commonly regarded as a polygenically inherited trait. Yet, by use of QTL analysis and a selected set of PCN populations, resistance to both PCN species could be ascribed to the action of locus Grp1. Grp1 confers major resistance to G. rostochiensis line Ro(5)-22 and G, pallida population Pa-2-D383 and partial resistance to G. pallida population Pa-3-Rookmaker. Grp1 was mapped on chromosome 5 using previously characterized AFLP markers. Cleaved amplified polymorphic sequence (CAPS) markers available for RFLP loci GP21 and GP179 revealed that Grp1 maps on a genomic region harboring other resistance factors to viral, fungal and nematodal pathogens. The present data indicate that Grp1 is a compound locus which contains multiple genes involved in PCN resistance.
引用
收藏
页码:654 / 661
页数:8
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